Technical Supplement
This manual is intended to serve as a supplement to the
FT-727R Operating Manual. Detailed information regarding
functions, specifications, options and operation has been
provided in the Operating Manual, and is not reprinted
herein. Therefore, this supplement is not intended to serve
as an independent reference, but to be used in conjunction
with the information provided in the Operating Manual.
Because of the compactness and complexity of the
double-sided glass-epoxy circuit boards used in the FT-727R,
four layout diagrams are provided for each board. Each side
of the board is identified by the type of the majority of
components installed on that side. In most cases one side
has only chip components, and the other has either a mixture
of both chip and lead components (trimmers, coils,
electrolytic capacitors, packaged ICs, etc.), or lead
components only. The two “obverse” views depict the board as
it is seen when viewed directly with the eye, while the two
“reverse’' views depict the unseen side of the board as it
would appear if one were to peer through the board from the
other side without seeing the components and tracks on the
near side.